Cylinder vertical type insitu processing system

The invention provides a cylinder vertical type insitu processing system which comprises a rack, a rotary device, sliding seats and a welding seam fixing clamp; the rack is provided with a first vertical guiding mechanism; a processing device is arranged on the first vertical guiding mechanism; a first driving device is further arranged on the rack; the rotary device comprises a base and a rotarytable; a second driving device is arranged on the base; the number of the sliding seats is the same as that of arc shaped plates; first horizontal guiding mechanisms are arranged on the rotary table;the number of the first horizontal guiding mechanisms is the same as that of the sliding seats; each of the sliding seats is arranged on a corresponding first horizontal guiding mechanism in a slidingmanner; a third driving device is further arranged on the rotary table; a first fixing device is arranged on each of the sliding seats; and the welding seam fixing clamp comprises an external pressing clamp and an internal str